Perhaps you should try some spelling variations:
ghana health » china health, data health
wang lihong » wang liang, wang shiyong
cindy young » canada young
yang cindy » yang mind
wang yong » wang yang, wang hyoung, wang yan
young man » young men, young woman, young male
tan yang » dan yang, tan ying, tan yong

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang lihong) or (wang yong)) ((ghana health) or (male health)) tan yang cindy young man ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang lihong) OR (wang yong)) ((ghana health) OR (male health)) tan yang cindy young man ;.
• Adding a wildcard symbol may retrieve word variants: ((wang lihong) or (wang yong)) ((ghana health) or (male health)) tan yang cindy young man ;*.